Boonie hat

A boonie hat, also known as giggle hat, is a form of wide-brim hat commonly used by military forces. Its design is similar to a bucket hat but with a stiffer brim. Often a fabric tape band of 'branch loops' is sewn around the crown of the hat. This 'foliage ring' is meant to hold additional vegetation as camouflage. A strap provides stability. The crown may be vented with rivets or mesh panels. Snaps may also be provided with which to fix the brim in the style of an Australian bush hat.

In 1967, the U.S. Army began issuing boonie hats, as the "Hat, Jungle, with Insect Net", made of cotton and wind-resistant poplin, in olive drab, tigerstripe, and ERDL pattern.[6] It was meant to supplement and replace the patrol and baseball caps that had been in service since World War II. As the U.S. military evolved away from a garrison mentality, the boonie hat found a permanent place as part of the uniform of all services. The boonie hat has changed little through the decades since the Vietnam War and was used in the Iraq War and still in the War in Afghanistan as an alternative to the patrol cap. The U.S. military boonie hat has come in a variety of camouflage patterns; the current assortment includes Woodland, three-color desert, UCP, MultiCam, and both desert and woodland versions of MARPAT, as well as the Air Force ABU pattern.[1] The boonie hat is often worn with the wearer's rank insignia pinned to the front, above the branch loops.

In 1968 the U.S. Army authorized use of the woodland ERDL pattern (Engineering Research Development Laboratory) material, used in the 1969 and later production of hats in cotton ripstop material. These were labeled, "Hat, Camouflage (Tropical Combat) Type II" with contract dates starting in 1968. They were in use from 1968 for both the Army and Air Force, and from 1969-70 for the Marine Corps and Navy.[1]

Similar wide-brimmed hats in the Australian Army are known as giggle hats. Along with slouch hats (also known as bush hats), giggle hats were issued as the standard uniform of Australian troops fighting in Southeast Asia during the Second World War. The design apparently originated from an earlier British uniform intended for fighting in hot and humid conditions. They were nicknamed "giggle hats" (as well as "hat ridiculous-for-the-use-of") by the Australian troops due to their appearance.[7]

The giggle hat gained popularity during the Malayan Emergency, in which protection from the searing heat of Malayan tropical conditions and the heavy rain that occurs regularly throughout Malaya proved to be necessary. Alongside the British, the Australian Army started issuing this type of hat, which had a steeper and shorter brim than its earlier counterparts. It was made with the same materials as the hot weather combat uniforms, unlike the slouch hat, which was beginning to take on a more ceremonial role rather than being field gear.

These hats gained even more popularity during the Vietnam War, where they were called 'hats utility, jungle green', although they were colloquially known by the Australians as giggle hats. During this conflict, nearly every Australian soldier was issued with the hat, mainly to protect soldiers from the elements. To ensure the latter, the army created several regulations: the hat was not allowed to be modified or cut whatsoever, and it had to be worn when outdoors at all times. The hat had also served the purpose of breaking up the recognizable outline of the soldier's head. It was made with cotton twill, and was issued in olive drab, the standard colour of Australian combat uniforms at the time.